Calendar clock



Aug. 9,. 1938. w. w. HUSTON CALENDAR CLOCK Filed Oct. 21, 1935 9Sheets-Sheet l Aug. 9,' 1938. w. w. HUSTON ,1

CALENDAR CLOCK Filed Oct. 21, 1935 9 Sheets-Sheet 2 ORNEY Aug. 9, 1938.w. w. HUSTO N 2,126,469

' CALENDAR CLOCK Filed Oct. 21, 1935 9 Sheets-Sheet 3 Aug. 9,1938; w. w.HUSTON CALENDAR CLOCK Filed Oct. 21, 1935 9 Sheets-Sheet 5 I'll zIVIIIIIIII/III/I/ nzw Hl/570/V.

Aug. 9, 1938. w. WIHUSTON 2,126,469

CALENDAR CLOCK Filed Oct. 21, 1955 9 Sheets-Sheet e ATTORNLXS' Aug. 9,1938. w. w. H USTON i 2,126,469

' CALENDAR CLOCK v Filed 001;. 21. 1955 9 Sheets-Sheet 7 14. W. H0570/V5) Aug. 9, 1938. w. w. HUSTON CALENDAR CLOCK 9 Sheets-Sheet 8 Filed Oct.21, 1955 ,Aug. 9, 1938. w. w. HUSTON 2,126,469

CALENDAR CLOCK Filed 001;. 21, 1935 9 Sheets-Shet 9 FIG.I56.

INVENTOR w w. HU5TON ATTD Nev:

Patented Aug. 9, 1938 CALENDAR CLOCK v William Warden Huston, Windsor,Ontario,-

Application mm :1, 1935, semi N... 45,920

' 10 Claims. (01. 40-11:)

My invention relates to improvements in calendar clocks, and the objectof the invention is to devise a mechanism operated by an'ordinary clockmechanism for indicating automatically 6 the successive week day, monthand year dates of the calendar in their proper succession, and

it consists essentially of the arrangement and construction of parts ashereinafter more particularly explained.

, In the drawings, Fig. 1 is a perspective view of my clock.

Fig. 2 is an enlarged perspective detail of the mechanism removed fromthe clock. case, with certain parts broken away to more clearly showcertain mechanisms.

reverse side.

Fig. 4 is a sectional view extending longitu:

dinally of the mechanism shown in Figs. 2 and 3.

Fig. 5 is a cross sectional view on line H of Fig. 4.

Fig. 6 is a cross sectional view on line t-i of Fig. 4.

Fig. 7 is a Fig. 4.

V Fig. 8 is a sectional view on line :4 of Fig. 4.

cross sectional view on line I -.-l of Fig. 9 is a sectional view online 9-4 of Fig. 4.. Fig. 10 is a face elevation of the month wheel andindicating the relative position of the actuat- 30 tions on the wheelperiphery.

Fig. 11 is a face elevation of the year wheel and indicating therelative position of the actuating pins on the wheel face to the yearindications on the wheel periphery.

Fig. 12 is a plan view of the cam mechanism located between the monthindicating wheel and the day of the month" indicating wheel and in the29 day, position when a 30 day month is indicated.

Fig. 13 is a similar view to Fig. 12, the cam mechanism being ,shown inthe 30 day position in a 30 day month.

Fig. 14 is a similar view to Figs. 12 and 13 showing the mechanism in a30 day position for a 31 day month.

Fig. 15 is a similar view to Figs. 12 to 14 inelusive showing themechanism in position when changing from a 29th day indication to afirst day indication of the next succeeding month.

Fig. 16 is a similar view to Figs. 12 to 15 in'- elusive showing themechanism in position when changing from a 28th day indication to afirst day indication of the next succeeding month,

Fig. 3 is a similar view to looking at the ing pins on the wheel face tothe month indica- Fig. 17 is a plan detail of th e'cam employed in a 30day month.

Fig. 1a isa plan detail or the camemployed in a 29 day month.

Fig. 19 is a plan detail of the cam employed in a 28 day month. I

Fig. 20 is a plan detail of the mechanism for operating my device everytwenty-four hours.

Figs. '21, 22, and 23 are detail views showing the various positions ofthe trip or escapement mechanism. I l

"Fig. 24 is a sectional view on line 24-24 of. IG. 20. I g

Fig. 251s an enlarged perspective detail of one of-the pinlons coactlngwith the day of the- -month wheel or month wheel.

Figs. 26 to 28 inclusive show-the means. for changing the A. M. and P.M. indicating Imeans. Fig. 294s a face elevation of -the day of the montpinion and a fragmentary portion of the. "day of the month wheel withwhich it engages.

Figs. 30 and 31 are details showing the connection between the movablepin and cam plate.

Figs. 32 to 35 illustrate the lost motion connec- Y tion between-themain indicating wheel support-' ing shaft and the day of the month andday of the week indicating wheels, these wheels being 1 identical in sofar as their showing in these figures is concerned.

Fig. 36 is a detail'elevationof the yearwheel and adjacent parts. 7

Figs. 37. 38 and 39 are longitudinal sectional views respectivelythrough Figs. 17, 18 and 19.

In the drawings like characters of reference indicate correspondingparts in the different views.

The clock case is designated by the numeral I provided with the usualdial 2 and front opening 3 preferably provided with a protective glass 4through which the calendar indications are visible. 5 and. 6 areorifices formed inthe. side walls of the case l through which extend theknurled knobs for rotatively adjusting the indicating wheels ashereinafter described.

A frame formed by a bottom plate I, side plates 8 and 8 andtop platellilts within the case I and on which my mechanism is carried. Front andback closure plates IO and Ill are provided, the front plate I 0* beingprovided with viewing orifices H 'll, fi and II. A clock mechanism. IIis supported on the plate In of which I! is the minute shaft and]! thehour shaft to which are secured the minute-hand I4 and hourhand I! inthe usual way. In the side plates 8 and [are bearing orifices I and 0and It is' with the orifices I and 5 A'main supporting shaft comprisestwo shaft members l1 and II, the outer portionsof which are Journalledin the orifices 8 and I and their inner abutting portions in the orificeII of the standard II. V onto the outer end of the shaft member I I and"his a knurled knob screwed onto the outer end of the shaft member l4.

A week day wheel I! is freely mounted on the shaft member l1 andprovided, at one edge, with an annular rabbet groove Secured to orformed integral with the wheel I5 is a ratchet wheel 25, the teeth ofwhich correspond in number to the number of week day divisions on theperiphery of the wheel I! and are opposite the rabbet groove ll topermit of free engagement with their operating pawl. The periphery ofthe wheel I! is preferably divided into thirty-five divisions so as toaccommodate the days for five successive weeks which" are inscribedthereon as indicated in Figs. 2 "and 3.

A month wheel II is divided on its periphery into thirty-six spaces soas to be equal in circumference to the week day wheel I! and toaccommodate the month indications for three years as indicated in Fig.10 by the outer circle of month indications 22. The wheel II is providedon one face with a rabbet groove II and on the.

opposite face with a rabbet groove 2|". A gear 7 wheel 23 is providedwith seventy-two teeth. two

teeth corresponding to each peripheral month space of the wheel 2i andhaving the space between each two sets of two teeth centred opposite thecentre of each month space of the month wheel.

A -day of the month" wheel 24 is divided into thirty-one spaces tocorrespond with the greatest number of days in a month. The wheel 24 isprovided, on one face. with a rabbet groove 24 and on the opposite facewith a rabbet groove 24. Secured to or formed integral with the wheel 24is a ratchet wheel 25, the teeth of which are opposite the rabbet groove24. Within the rabbet groove 24* are two teeth 25 and 21, the interspaceor recess 21 extending laterally into the ody of the wheel as indicatedin Fig.3.

The month wheel II is provided with three sets of teeth 24 and 25 in therabbet groove 2l and having their interspace 29 extending into the bodyof the wheel 2| for a purpose which will hereinafter appear.

A year wheel 34 is divided. on its periphery into fifty spacescontaining successively the year dates from 1934 to 1983 inclusive andis provided centrally with a tubular hub 30 Against the left hand orinner face of the year wheel 35 fits a ratchet wheel II having fiftyteeth corresponding in number to the number of years on the year wheel.The centre of the ratchet wheel is provided with a tubular hub. A collarl4 fits against the hub II and is secured to the shaft member II by aset screw Il'.

A'tubular nut 32 is provided with a central bore 3! fitting aroundthenut II and having an is a .knurled knob screwed mounted to revolvefreely around the shaft member II. The day of the month wheel 24 isprovided with a pin 14' engaging in a segmental recess "2' formed in theannular fiange III of the sleeve I52 secured bya set screw I53 to theshaft ll soas to be controlled by the knob II I will now describe themeans by which the week day wheel and month day wheel are rotated. aweek day space and a month day space at the end of each twenty-fourhours which preferably terminates at midnight and through which themonth wheel is rotated a month space at the end of each. revolution ofthe day of the month wheel and the year wheel at the end of each Vrevolution of the month wheel.

In the frame plates 34 and 35 is journalled a shaft 3 which acts as awindingstem and on which is secured a rachet wheel 31 and on which isfreely mounted a gear 39 on which is pivoted a dog '44 engaging theratchet 31. A clock spring 4! is connected at one end to.the shaft 35and at the opposite end to the frame post 42 so as to drive the gear I!when the spring is wound tight through the sprocket 3'! and dog 40.Meshing with the gear 39 is a pinion 43 secured to a shaft 44 which isalso Journalled in the plates 34 and 35 and to which is also secured thecrank disc 45 from the periphery of which extends a pin 44.

On the minute shaft is secured a pinion 41 (Fig. 20) and on the tubularhour shaft is secured a gear 44. The pinion 41 and gear 48 are connectedby the integral gear and pinion 49 and 50 mounted on the stud shaft 5|.The pinions 41 and 55 and gears '44 and 49 form a twelve to one drivebetween the minute and hour shafts in accordance with the usualpractice.

Journalled in the bracket 52 carried by the standard 53 and the bracket54 carried by the plate 34 is a shaft 55 on which is secured a gearwheel 55 in the manner hereinafter described. The gear 58 has atwenty-four to one ratio with the pinion 41 of the minute shaft. On theopposite end of the shaft 55 is secured a cam 51.

. The gear 55 rotates in a clockwise direction as indicated by arrow inFig. 2. The gear 55 is connected to the minute hand shaft of the clockwork by means of the pinion 50, gear 49 and pinion 41 which is securedto the minute shaft.

In the plates 34 and 35 is journalled a rock shaft 58. To the rock shaft58 is secured a tripping finger 59 coacting with the periphery of thecam5l and held thereagainst by means of the tension spring 50. Coactingwith the pin 48 is an escapement detent 5| secured'to the rock shaft 58.The nose I of the detent normally engages the pin 45, the inwardprojection 6l of the detent holding the pin in its final trippingposition as indicated by the positions illustrated in Figs. 22 and 23.

Journalled in brackets 62 and 63 secured to the bottom face of the topplate i0 is a rock shaft 44 to which is secured the rearwardly directedarms 55 and 55 and the forwardly directed arm 41. The arm 51 isconnected by a link 68 to the forwardly extended end 59 of a mainoperating lever 59 which is swung on the shaft member l4 (Fig. 3).

Connected to the crank disc 45 by a link 15 is a lever II pivotallymounted at one end upon a bracket II. The link 10 is pivotally connectedat one end at 13 to the lever II and at the opposite end at 14 to thecrank wheel 45. v o

.- Adjacent the bottom plate I in the side plates 8 and I is journalledarock shaft 15 directly bencath the rock shaft" and on which are swung 75I19 connected by IinIrbars-I B and I9 to the arms 85 and-88. On thejlinktbars' I8 and 'l9'are pivotally mounted spring pressedpawls 88 and8I respec tively engaging the teeth of the r'atchets 28 and 28. Dogs 82andg88engagethe ratchet wheels 28 and. 25.to prevent reverse rotation;

' The rear end 89 of thelever 89is connected by a link rod 84" to thecorresponding end of the lever-II. j

As the hands of the-clock revolve-towards twelve tion indicated in Fig.'21 carrying the nose SI of the detent 8I fclear'of 'thepin 48, therebyreleasing the crank wheel 45 permitting it to revolve untilthe'pin"48eng ages the detent projection 8I which is swung inwardly by thecam 51 and finger 89.

tripping off the cam 51 to assume the dotted position illustrated inthis. figure so as to release the pin 48" from the projection 8 I andcarry the nose 8 I X to adjacent the periphery of the "crankwheel andinto the path of the pin 48 against which'it is stopped as therevolution.

By the revolving of the crank wheel'45, the lever II is reciprocatedwhich, .bymeans of the link rod 84, reciprocates 'the lever ,89 rockingthe shaft 64 by means of the link 88 andarm 81. The rocking of the shaft84 vertically reciprocates the pawls 88 and ill by means of the arms 85and 88, rocking shaft I and arms I8 and. I1 and link barsIB and I9.Bythis means the ratchet wheels .28 and 25 are rotated the space of onetooth carrying the next week-day indication and the next day of. themonth indication opposite the exhibiting orifices ,I I and.l2 In everythirty-one day month the day of the month wheel in its normalste'p bystep rotation indicates successively the thirty-first day of onemonthand the first day of thenext month. I

The operation of my device is first considered in relation to thirty-oneday months. In order to operate the month wheel at the end of eachthirtyone'days I provide the following mechanism. A shaft 88 isjournalled in the standards 88 and 81. A pinion 88 is secured to theshaft every other .tooth 88 of which-is a half length tooth (see Fig.25). The relation-of the pinion 88 to teeth 28,

' 21- is the same as that which pinion 93 and teeth 28, 29 bear to eachother and which is shown in Fig. 3 and described subsequently in thespecification. ,As the day of the month wheel revolves, the tooth 21engages one of the half length teeth 88 rotating the pinion so that afull length tooth 88 meshes in between the teeth 21 and 28 and the tooth28 is engaged by the next half tooth 88 of the pinion, the pinionrotating until the next succeeding full length tooth engages theperiphery of the day-of the month wheel preventing 'its furtherrotation; .The position of the teeth 28 and21, on the periphery of theday of the month wheelissuch that they engage with the pinion as thenumbers appearing through the exhibiting orifice I I change fromthirty-one to one.

On the oppositeend of the shaft 85 is secured;

a gear pinion 8'9meshing with the gear wheel 23. The rotation of thepinion 88 by the gear teeth 28 and 21 is sufficient torotate the gear 23through the shaft 85 and pinion 88 a distance of twoteeth whichcorrespo'ndsto a'month space on the periphery of the month wheel 2i soas to change the month indications appearing through As the hands'of'theclock indicate twelve oclock midnight the 'cam 51 assumest he posi-.tion illustrated'in Fig. 23, the tripping finger 59 crank wheel 45completes its each twelve month period inscribed on the periph ery ofthe: wheel. In'thestandards 86 and 8 1 and standard 98 is journalled ashaft 92 (Figs; 3 and 9) I on which is secured a pinion 93 similar tothepm-. o-clock midnight, the cam 51 rotates to the posiion 88 and withwhich the teeth 28' and 29 engage-when the last month indicationDecember appears through the exhibiting orifice I I. As the rotatesthegear 84 a space of two teeth and consequently' rotating the ratchetwheel 3i a space of one tooth. The year wheel 38 is provided with'apivoted dog 95 supported on a stud 98 extending from the face of theyear wheel and spring pressed against the ratchet wheel 3|. By thismeans the year wheeli's rotatedso as to successively change the yearappearing through the exhibiting orifice I2 at the end of each twelvemonth period indicated on the periphery of the month wheel 2 I.

I will now describe the means by which the diiference in the differentnumber ofdays in a month is compensated for.

- On the base plate--1 is secured a bracket81 onwhich are pivotallysecured cam pieces 98, 99 and I88 by a 'stud bolt 'I8I' and individuallypressed by springs 88 99 and MW. The cam piece 98 controls the mechanismfor a thirty day month, the cam piece 98 for a twenty-nine day month andthe cam piece I88 for a twentyeight day month. I

From the face of the month wheel 2| adjacent to the day of the monthwheel extends a series of pins I82 arranged in a concentric circle 38(see Fig. 18) one for-each thirty day month and in a position ninetydegrees from the month indication appearing through. the exhibitingorifice II as indicated by the inner circle of month indicationsinscribed at I 83 in Fig. of the drawings. It wili', of course,-beunderstood that the inner circle of month indications I83 are onlyprovided in thedrawingsfor the sake of clearer understanding .of theoperation and are not used in actual practice.

Eachpin of the 88 circle opposite the November indication of the innerindicating circle I83 is formed by a short shaft I84 on the projectingend of which is secured an arm I85 providedwith a hub. I88 which takesthe place of one of/ the pins. I82. 'The opposite end. of the arm isprovided with a projection I81 which is normally located on the 28circle. The op'posite end of the shaft I84 is provided with an arm I88against which a spring. I 88 bears (Fig. 5).

.the opposite end of the shaft 92 by this operation sis By this meansthe arms I are normally held against stationary pins II8 (Fig. 10). Theface of the wheel 2I is recessed at III so that the face of the arm I85is flush with the face of the The day of the month" wheel is provded Iinner face of such plate the adjacent end of the pin H6 is looselyconnected at NW. A compression spring II9 extends between the bottom ofthe recess H2 and the plate H6.

As clearly seen in Fig. '7 the end 69 of the lever 69 is enlarged intosegmental form to carry a spring finger I2I and is provided with aninwardly bent forked lower end I2I which is in circumferential alignmentwith the pin II6.

It will be noted by referring to Figs. 17 to 19 that the cam bars 96, 99and I are provided with heads I22, I23 and I24 which are somewhattriangular in form, the broad base portion of each head being exactlyequal in width to the distance between the outer ends of the pins I02and the opposite face of the wheel 24. The heads I22, I23 and I24 areprovided with pin bearing faces I25, I26 and I21 and inclined is secureda cam arm I36 having an inclined face I31 with which pins I38successively engage (Figs. 2, 3 and 9). A pin I36 corresponds to eachleap year and these pins are placed in such a position (see Fig. 11)that when a leap year is exhibited through the exhibiting orifice I2 thecorresponding pin I36 will engage the inclined face I31 of the cam armI361 An arm I39 is secured to the opposite end of the shaft I35 directlybeneath the path of travel of the spring pressed arm I06 (Fig.

When a leap year is exhibited through the exhibiting orifice I2", forinstance the year 1936, the pin I36 of the pins I36 swings the arm I36to the dotted position (see Fig. 9). By this means the arm I39 is raisedinto the dotted position shown in Fig. 9 and into the path of the springpressed arms I60 (Fig. 5) forcing them inward and rocking the shaft I04to carry the arm I05 inwardly and the projection I01 into the 29 circle.I

When a thirty day month, such as November, is brought opposite to theexhibiting orifice II", the corresponding pin I02 iscarried by there--tation of the month wheel 2I directly opposite to the contact face I25of the thirty day cam lever, thereby holding the opposite face I 25 ofthe head I22 in close contact with the face of the "day of the month"wheel 24 so that as the "day of the month" wheel is rotated to thetwenty-ninth day exhibiting position; the. cam plate H6 is carried intocontact with the cam face III in the position shown in'Fig. 12.

By the next rotary movement carrying the wheel 24 to the thirty dayexhibiting position, the cam plate I I0 is depressed into the positionshown in Fig. 13 forcing the head II1 to the projecting positionindicated and into the path of the forked end I2 of the spring plateI2I. The lever end 66 is swung downwardly every twenty-four hours bymechanism which I will now describe, which mechanism is actuated fromthe hour-shaft. The minute shaft I2 rotates the gear 56 once in everytwenty-four hours in a clockwise direction by hingedly mounted at I I6in a recess I20 formed in the opposite face of the wheel 24 and to themeans of the gears 41, 49 and 50, the gear 56 also driving the hourshaft I3.

The gear 56 is secured to the shaft 55 as is also the cam 51. Therotation of the cam 51 trips the tripping finger 59 once in everytwentyfour hours (see Fig. 4). The tripping finger 59 is secured to theshaft 56 as is also the escapement detent 6|. The cam 51 in its rotationto the tripping point gradually forces the'finger 59 inwardly so as torock the .detent upwardly at 6I to release the pin and the crank disc 45which is then driven by the spring 4i until the pin 46 engages theprojection 6I of the detent 6| which has been swung inwardly as thedetent releases the pin 46 at SI When the cam 51 trips the finger 59,the spring 60 swings the finger 59 towards the shaft 55 and therebyrocks the detent upwardly at 6I to release the pin 46 from theprojection 6I. When the pin 46 is released from the projection 6I, thecrank wheel 45 revolves swinging the lever 'end 69 first downwardly andthen upwardlyby means of the connecting link 10, lever 1i and link 64...By the downward swing of the lever end 69, the fork end I2I engagesbeneath the head II1 of the pin II6 holding the pin H6 in its outwardposition while forcing such pin II6 forward to rotate the day of themonth wheel from the thirty day position to the first day position ofthe next month. It will, of course, be understood that the pawl 6i stillreciprocates normally but when the day of the month" wheel 24 and theratchet 25 are rotated the teeth of the ratchet 25 slip past the pawlbeing rotated the space of two teeth by the coacting pin I I6 and fork,I2

It will also be understood that during the normal operation of the pawl6| rotating the day of the month" wheel one day at each operation as ina thirty-one day month, the fork I 2I', of the lever end 69 operatesidly as the pin H6 is not. forced out to a fork engaging position.

As there are thirty-one days in December and January, no pins of themonth wheel engage any of the cam bars 96, 99 and I00 and the camsassume the position shown in Fig. 14, being forced by the spring pressedcam plate III! in between the pins I02.

As February, the next succeeding month, has normally only-twenty-eightdays, the pin projection I01 at the end of the swinging arm I05 and onthe 20 circle engages the contact face I21 of the cam arm I00. The camplate IIB engages the inclined edge I33 of the cam arm I00 as the wheel24 passes from the twenty-seven day position to the twenty-eight dayposition so that on the twenty-eighth the head H1 is forced outward atthe twenty-eight day position. It may be pointed out that the lever end69 swings down on the twenty-eighth day of February performing itsnormal movement causing the twenty eighth day to appear in the viewingorifice I2 Also on the same day, the pin H6 is forced out by the plateII6 after the forward passage of the fork I2I and as the lever 69returns the spring finger I2I springs over the projecting pin II6 topass into its normal position so that by the next forward movement thefinger engages the pin to rotate the wheel 24 to the first day positionof the next succeeding month.

In order to simultaneously change the month wheel from one month-to thenext succeeding month, the teeth 26 and 21 on the day of the month wheelengage with the pinion 86 as the day of the month wheel rotates from thelast day of one month to the first day of the next gear 23 of the' monthwheel rotating the month wheel one month space at each operation.

'On the next downward swing ofthe lever end 88, the .fork |2| engagesthe pin' H5, before the pawl 8| engages a tooth of the ratchet 25 inperforming its normal movement, carrying the wheel 24 from thetwenty-eight day exhibiting position past the twenty-ninth, thirtiethand thirty-first day positions to the first day position of the nextsucceeding month, the corresponding teeth of the ratchet 25 slippingfreely past the pawl' 8|. As before stated the rod 84 is operated everytwenty-four hoursupon the release of the crank wheel 45. Thelongitudinal-movement o'f therod 84 operates the lever 58 to swing adistance equal to fourtooth spaces of the ratchet 25 and, at the sametime, operates the bar 18 longitudinally, the stroke of the bar I8 beingsufficient to rotate the ratchet 25 one tooth space at each (operation.The normal or tooth by tooth operation to rotate the day of the monthwheel from one day to the next day is pcrformed'by the pawl 8|, thelever 68 swinging during each op- .eration ofthe pawl 8|.

v The spring finger |-2I of the lever 88 only .functions when the pin H8is forced out by the pins I82, I88 or I81 meeting with thecam'me'mher-s88, 88 and I88 to force the plate H8 flush with the day ofthe'month wheel, the point at which the pin H8 is .forced out beingcontrolled by the cam members 88, 88- and I88. The springs 88 88 and |88normally hold the earns 88, 88 and I88 against the,day of the month"vwheel .24 except when raised plate H8 forces them up against the wheel2| when a monthhas thirty-one days and no pin is in the way to press thecams down and force the pin H8 -out.' If it is forced out at the point A(See Fig. '7) the swing of the lever 88 engages the fork I2|2 therewithto rotate the ratchet four tooth spaces and rotate the day of the'month"wheel from.

. the twenty-eight day position to the first day position of the nextmonth. If the pin H8 is forced out at the point B, the ratchet wheel isonly rotated three tooth spaces carrying the -day 0 of the mont wheelfrom the twenty-nine day position to the first day of the nextsucceeding month. If-the pin is forced out at the point C,

the ratchet 25 is only rotated two tooth spaces carrying the day of themonth wheel from they thirty day position to .the first day position ofthe next month. The swing of 'the lever 88 always remains the same, eachswing corresponding to one movement of the pawl 8|. 'I'herefore,

' exception that the twenty-nine day lever 88 is held from'movement bythe pin projection I81 when on the 28f dotted circle indicated in Fig.18

.instead of the cam lever |88 which is now unsupported by the pin.projection I81. At the end of each day the tripping mechanism includingthe cam 51 driven from the hour shaft, tripping finger "and detent 8|releases the crank discv '48 which-is then spring driven by the spring4] and is connected to the rod 84 to reciprocate it to swing the lever88 and through which the bar 18 is reciprocated to operate the pawl 8|to rotate the ratchet 25 a tooth at a time and the day of themonthjwheel a day space at a time.

By this means, when the day of the month wheel is rotated to thetwenty-eight day exhibitingposition, the cam plate. H8 engages theinclined edge I28 ajnd as it rotates to the twentynine day positionforces the head H'I outwardly so that by the next downward movement ofthe lever end 88 the pin H8 is'engaged by the fork I2 I By the swingingmovement of the lever 88, the ratchet 25 is rotated three tooth spacesandthe day of the month wheel three day spaces, carryingthe day-of themonth wheel from the twenty-nine day exhibiting position to the firstday exhibiting position of the next succeedin month. Thereafter the dayof the month" wheel, when the month wheel is changing from March, May,July, August and October having thirty-one days in the month, to thenext succeeding month, is controlled by the ratchet wheel 25 and pawl 8|only in a continuous even step by step movement from month to month. Themonths of April, June and September having thirty days in the month arecontrolled by the means described in connection with the month ofNovember.

It will be noted that the month wheel is prothe indications of Januaryto December inclusive appear on each one-third of the Deriphery'of themonth wheel. At the end of each one-third revolution of the month wheela tooth of the pinion 83 is engaged by the :teeth 28 and 28 of the monthwheel thereby turning the shaft 82 and the pinion 84 in .mesh with theBear 84 connected to the gear'wheel 88 to rotate it a year space.

As has been before described the "day of the mont wheel is rotatedeitherby the ratchet pawl 8| orthe fork |2I engaging the pin H8. Theteeth. 28 and 21 are located opposite the thirty-one day peripheralindication of the day of the month" wheel and, therefore, when broughtinto engagement with the pinion 88 rotates such Normally the pin I8! is.in the twenty-eight day position to coact with the lower cam bar memberI88 to hold such member stationary against the whel'24 and force out thepin VH8 when the plate I I8 engages the cam member I88 so that thefinger |2| engages the pin 8 atthe position A (see Fig.7) or thetwenty-eight day position. In leap year the'pin I81 is moved in- Iwardiy' to the twenty-ninth day position or the position indicatedbydotted lines in Fig. 18.

As'the year wheel is rotated from ,year to year" in'the manner abovedescribed, the pins I88 catd in the wheel- 88 opposite each fourth orlean-year indication engage the cam arm 188 to rock it outwardly therebyrocking the shaft I85 in the same direction, raising the arm I88 intothe path of the free ends of the arms I88, and.

vided'with three sets of twelve months, that is rocking these arms andthe shaft I84 inward together with the arms I85 secured to such shaft.

7 tion shown in mfio. In this position the pin ll'l coacts with theshorter cam member ll in-' stead of with the cam member ill so that thedepression of theplate III is delayed forcing out the pin ill at theposition 3 or the twenty-ninth day position (see Fig. 7) instead of atthe position A and the "day of the month" wheel is not rotated by thefinger III until the twenty-ninth day appears in the orifice II toconform to the number of days in February in leap year.

In the event of the clock stopping, it may be necessary to know whetherthe hour at which it stops isA.M. or RM. Inordertodothis Ihave providedthe following device:

On the hour shaft II is secured a cam Ill. The gear ll, hereinbeforereferred to, is secured to a cylindrical member Ill in which is fittedan inner cylindrical member ill fittingatvone end against the gear lland projecting from the opposite end and provided with a circular head.ill. The members Ill and Ill are secured to, the shaft II by a diametrlepin Ill. A disc Ill is revolvably mounted on theprojecting portion ofthe cylindrical member ill and the head ill. the outer face of the discbeing recessed to receive'the head ill. A disc Ill is secured to thedisc Ill. One half of the disc ill is white to represent A. M. and theother half is black to represent P. M. Pins Ill and lll project radiallyfrom the disc Ill and contact alternately against the periphery of thecam Ill. A pin ill projects from the cylinder Ill secured to the shaft58 and a pin ll! extends laterally from the disc Ill and is connected bya tension spring Ill to the pin Ill. An exhibiting orifice Ill is madein the clock dial through which a portion of the disc Ill is seen.

At twelve o'clock midnight the pin il'l passes of! the nose of the camIll as the cam revolves clockwise freeing the disc Ill to revolve bymeans of the tension of the spring ill exerted on the pin ill. Thespring Ill rotates the disc Ill behind the orifice ill so as to exposethe white portion of the disc therethrough to indicate A. M.

as shown in Figs. 26 and 27; After the disc ill is turned to exhibit thewhite area the disc is rotated to carry thepin ill into engagement withthe cam Ill, such rotation being enacted by the gear ll driven from thehour shaft and connected to the disc by the pins ill and Ill and springill.

When the pin ll'l engages the cam it is held thereby stationary, thegear ll continuing to revolve and thus drawing the spring Ill again intotension. -When the camill releases the pin ll'l the disc Ill againrotates by the spring I" so as to carry the black area again intoposition behind the viewing orifice Ill. The rotation of the disc Ill,as the white area behind'the viewing orifice is changed to the blackarea or vice versa, is limited by the slot Ill formed in the disc Illand the pin III extending from the cylinder Having described principalParts involved in my'invention I will l'p-iefiy describe the opera tionof the same. I V

The cam II is driven in a clockwise direction mm the minute shaft isthrough the pinion n,

w u, pinion is, gear II and shaft ll. As the hands of the clock approachmidnight, the cam I'l swings the free end of the finger ll outwardlyfrom the shalt ll rocking-theshhftll in the same direction together withthe detent ll so that thenose ll ofthedetcptgraduallyclears the pin-.andthe projection ll'at the same time approaches the crank wheel ll andpasses intothe path of the pin li as it is released from the nose I ofthe detent li. When the nose II rises above the end of the pin, thecrank disc ll is revolved in a counterclockwise direction by the driveof the spring ll until the pin ll strikes the projection ll,"assumingthe position illustrated in Fig. 22. At midnight the end of the fingerBl passes the nose of the cam 51 and drops to the dotted position shownin 'Fig. 23, swinging the projection ll also to the dotted position andclear of the pin ll.

It will be understood that the rotation of the crank wheel carrying thepin ll from the nose li of the detent Ii to the projection li of thedetent has no eilect on the actuation of the lever Ii as the pivot ll ofthe link Iii is carried from one side of the vertical centre line of thecrank wheel to an equal distance to the opposite side of such centerline. When the pin ll is released from the detent projection ii", thecrank wheel is driven by the spring ll the rest of its revolution untilthe pin l5 again strikes the nose Ii of the detent II which has beencarried inwardly as the projection ll is carried outwardly to releasethe pin ll.

The rotation of the crank wheel ll which is counterclockwise imparts onereciprocating movement to the lever 'li, swinging the lever on its pivotin the bracket 12. This reciprocating movement is transferred to themain lever ll by the link rod ll.

The main lever ll performs two functions. The first is performed by theend 88* imparting to the day of the month" wheel and to the day of theweek wheel each a. step movement from one day indication to the next dayindication on each day. This movement is performed through the link llconnected to the arm 81 secured to the rock shaft ll thereby rocking therock shalt as the lever end reciprocates. This rocking of the rock shaftll swings the arms 85 and ll downwardly importing a downwardlongitudinal movement to the hersv 1s and 1s and thereby carrying thepawls II and li into engagement with the teeth of the ratchet wheels andII secured to the day of the week wheel and the "day of the month wheelrespectively. By this 'operation, the day of the week/wheel and thereturning to their normal position. This operation is repeated each dayrotating the day of the month" wheel thirty-one day spaces in eachrevolution for each of the months of January, March, May, July. August,Octoberand December.

As each revolution of the "day of the month" wheel is completed, thesegment gear teeth 2| and 21 mesh with the pinion ll so as to rotate thespindle It and pinion 8| to rotate the gear 23 and month wheel Ii onemonth space, Simultaneously the opposite end 80 of the main lever swingsdownwardly carrying the forked end III of the springfinger ill over theface of the ratchet disc 2! and over the countersunk head ,Hi of the pinI'll. Normally this movement of the fork IX is an. idle movementperforming this purpoae a pin Ill coacts with the cam P1006 is seen inthe vlewing'oriflce 9.

months of April, June, September or In January. theoperation is normalythat is the pawl 8.l operates each day of the thirty-one days of themonth to turn the "day of the month" wheel a day space. will be seenthatno pin is opposite January or any thirty-one day'month sothat the campiecesv arefree to move away from the face of the wheel "Zlwhen engagedby the plate I I8, the'pin II. and

. its head 1' remaining in their normal inoperative position for thesemonths. When the month of February is seen in thefviewing orifice il.-

the pin I01 in the position shown by full lines in Fig. 10 engagesbehind the'cam piece I so that it "cannot be moved away from the face ofthe day of the month wheel 24 with which it normally contacts;

As the lever end 69 descends on the twentyeighth day of February, itpasses the head I11 when such head-is flush with the faceof the ratchetwheel 25-. The platelll, as the day of the month wheel revolves engagesthe cam piece I00 which is the longest of the cam pieces 90, 09' and I00and which,being held stationary,

by the pin I01, depresses the plate II! to a flush position with theface of the day of the month" wheel forcing the pin H6 and head II1 to aposi-- downward-movement of the lever end 09, the

. forked end I2I of the spring finger I21 engages the pin H6 before thepawl 0| engages the next tooth of the ratchet 25 and rapidly rotates theratchet wheel 25 and the "day of the month the twenty-ninathirty andthirty-one day indications pass downwardly beneath the pawl 0i and theday of the month wheel is rotated so that the twenty-nine, thirtyandthirty-one day indications rapidly pass the orifice I2 of the casing,

so that the next number appearing in'a stationary position in suchorifice will be one representing the first day of the next month.

The month of March having thirty-one days, the operation. is normal asin January, that is the pawl 0|, engages each tooth of the ratchet 2irotating the day of the month" wheel-a day space as each-tooth is forceddownwardly a tooth space by the pawl 8I, the pin H0 and head I I 1remaining in their inoperative positions.

The month of. A'pril only having thirty" days, the operation is similarto that for February except thata corresponding pin I02 engages behindthe short cam piece 98 and the plate I10 enga such cam to force the pinIlfi outwardly at the Point C.: .(Fig.' 7) to be engaged by the iork I2Iso the-moyement of the'ratchet wheel 25 is advanced-inrelationio itsmovement by the pawl 0| carrying the thirty-dire" day indication'of theday of themonth" wheel'rapidlypast the orifice.

I2 to exhibit the firstday in dication therein.

For May, ,July, August, October and December the operationisthe sameas'that above described for January and March, and for June; September andNovember the operation corresponds to that described for the month ofApril.

By referring to Fig. 10 it at the-endof each a, revolution of a...fmcmmwheel, the year wheel 30 is rotated one year space i by means ofthe segment teeth- {land-Ivor each twelve month period of the monthwheel meshing with the pinionfil to transfer to thef year wheel a yearperiod turning the year' jwheel one year space through the spindle :92.pinion 94 and gear 04 connectedto the .yearwhel 30.

I The aforesaid operations are'repeated; for the,

years 1931 and 1935and for all years other'than .leaLp years. As 1936 isaleap year, .a' pin" I30 of the pins I30 of the year wheel-andcorresponding totheyear 1936 as shown in the arm I moving the arm to e'dotted position (see Fig. 9) and thereby-rocking the. shaft Iain thesame direction swinging the'arm I09 .into the path of the spring pressedarm I08 moved g. 1 1 engages upwardly to the'dotted position showninFig. 5 v

in a circular path by the rotation of the ear 23 and month wheel 2|; Thearm I00 is thereby swung inwardly rocking the shaft I04in the samedirection together with the'arm' I05, which; carf ries the twenty-eightand twenty-nine day pin I01 moving such pin from the twenty-eight to thetwenty-nine day position shown by dotted lines in Fig. 10. As themonth'wheel revolves with the pin l01 in' the twenty-nine day position,

it is brought into engagement with thecam piece 00 which is longer thanthe cam Piece 08 and shorter than the cam' piece I00. The rotation ofthe day of the month" wheel carries the plate IIO into contact with thecam piece 09 held stationary by the'pin I01 so as to depress the plateM8 to a position flush with the face of the day'of the month wheelforcing the pin H0 and head II1 to a position projecting from theopposite face of the day of the month .'wheel. The downward swing of thelever end 68 engages the fork III with the pin H6 at the position 3 (seeFig. 7) so as to rotflte the :day of the month" wheel from thetwenty-nine day position to the first day position skipping the thirtyand thirtyv one day positions in the viewing orifice I2. -whee1 so thatthe ratchetv teeth corresponding to The pin 24 and the sleeve in havingthe slot I52 coact with the day of the month? wheel as follows for thepurpose of ensuring that the holding dog 03 engages with the teeth ofthe of the casing in a centred position. Also the pin 24 is relievedfrom shoulder G of the slot 2.

After the pawl 0| has made its downward movement, the parts assume theposition shown in Fig. 33, the dog 03 engaging in the teeth of theratchet with a clearance as shown at E, F and the next day indicationwhich is l" assuming a position above the centre of the orifice IZ Thesleeve in is rotated by thepin 24 engaging the face of the slot shoulderG. -As the pawl 8| returns upward its frictional contact with theratchet gear rotates these gears in a reverse; direction carrying-theindication I to a centred position in the orifice. I2 This movement islimited by'the dog 03 engaging the tooth shoulder E. If the clearanceE,F was not provided the 'dog 03 might not drop into engagement with theteeth of the ratchet 125 but assume the position shown in Fig. 34 at theend ofthe down stroke of the pawl II and consequently, as the pawlfrictional contact back to their original position. Furthermore when thepawl Bl returnsupward,

its frictional contact with its ratchet wheel would not be sufllcient toturn the ratchet and shaft if connected directly to such shaft and alsocarrying the weight of theindicating wheel, preventing the centering ofthe indications in the orifice l2 When the day of the month wheel is setby hand, the pin 24 is engaged by the shoulder H (see Fig. as the sleeveI52 is rotated. If the knob IN is rotated too far when the pin 24 is inengagement with the shoulder H, the rotation of the knob i8 may bereversed so that the shoulder G engages the pin 24 to carry the indicating wheels to the correct position.

Similarly when the day of the Weekv wheel is set by hand, the pin 25 isengaged by the shoulder ofthe collar l53 corresponding to the shoul derH of the sleeve I52 as the collar is rotated. If the knob l'l is rotatedtoo far when the pin 25 is in engagement .with the aforesaid shoulder,rotation of the knob may be reversed so that the .shoulder of the collari53 corresponding to the shoulder G of the sleeve I52 engages the pin 25to carry the day of the week wheel to the correct position. i

From this description it willbe seen that I have devised means actuatedfrom a time clock for successively indicating from day to day the daysof the week, days of the month, months and years forming anautomatically operated calendar for a long period of years such as fiftyyears to which the foregoing device as illustrated is adapted.

What I claim as my invention is:

1. In a calendar mechanism, a month wheel and a day of the month wheel,a main suping a day step rotary movement to the porting shaft on whichthe aforesaid wheels are mounted, a main lever swung intermediately ofits length on the main supporting shaft, means for imparting areciprocation to the main lever at the end of each twenty-four hours,means operated by one end of the main lever for impartday of the monthwheel, means operated by the other end ofthe main lever for imparting tothe "day of the month" wheel a movement equal to a plurality of dayspaces of such wheel, and means actuated from the month wheel for timingthe last mentioned movement number of day spaces comprising eachmovementl 2: In a calendar mechanism, a month wheel, a "day of themonth" wheel and a year wheel having year indications, each fourth oneofwhich is a leap year indication, a main supporting shaft on which theaforesaid wheels are mounted, a

main lever swung intermediately of its length on the main supportingshaft, means for imparting a reciprocation to the main lever at the endof each twenty-four hours, means operated by the inner end of the mainlever for imparting a day step rotary movement to, the "day of themonth" wheel, means operated by theother end of the main lever forimparting to the "day of the month wheel a movement equal to a pluralityof day spaces of such wheel and comprising a thirty day cam bar,atwnty-nine day cam bar and a twenty-eight day -cam bar pivoted betweenthe monthwheel and-the "day of the month wheel and individually springheld against the and controlling the thirty day month extending from theface of the month wheel and bearing against the thirty day cam when thecorresponding month indication is in the viewing position to positivelyhold the said thirty day cam against the day of the month wheel, amovable pin also extending from the face of the month wheel and bearingagainst either the twenty-eight or twenty-nine day cam when atwenty-eight or twenty-nine day indication is in the viewing position topositively hold the corresponding cam against the "day of the monthwheel, a spring held pin extending through the "day of the month wheel,and means coacting with the aforesaid cam. bars and pins for forcingsaid last named pin outwardly into the path of the outer end of thereciproeating main lever to be engaged thereby to rotate'the day of themonth wheel a plurality of day spaces, and means operated from the yearwheel for moving the twenty-eight or twentynine day or movable pin intoposition to engage the corresponding twenty-eight or twenty-nine day.cam.

3. In a calendar mechanism as claimed in claim 2 in which the means formoving the twenty-eight or twenty-nine day or movable pin comprises arock shaft journalled in the month wheel, an arm carried at one end ofthe shaft and on which the twenty-eight or twenty-nine day or movablepin ismounted, a spring pressed arm at the other end of the shaft, a pinextending from the face of the year wheel and corresponding to each leapyear indication on the year wheel periphery, a second rock shaft, andhearings in rock the rock shaft of the month wheel when the cam arm isdepressed by a year wheel pin at each leap year to thereby carry thetwenty-eight or twenty-nine day or movable pin to the twentynine dayposition.

4. In a calendar mechanism, a main supporting shaft, wheels mountedon,the shaft and having calendar indications on their periphery, a mainoperating lever, a driving spring, mechanism operated by the spring forreciprocating the main lever, a trippable device for holding the mainlever operating mechanism from normally functioning, means for trippingsuch device to impart areciprocation to the main lever at predeterminedintervals, and means operated by each reciprocation of the main leverfor rotating one of said calendar wheels an indicating space.

5. In a calendar mechanism, a main supporting shaft, a day of the month"wheel and a month wheel mounted on the shaft, a main operating lever, adriving spring, mechanism operindicating dayspace, and driving meansbetween the "day of the month wheel and the month wheel for rotating themonth wheel a month space'at the end of each revolution of the "day' ofthe month" wheel: 6. In a calendar mechanism, a main supporting shaft, a"day of the month" wheel, a month wheel and a year wheel mounted on thesupporting shaft, a main operating lever, a driving spring, mechanismoperated by the spring for an indicating space, driving means betweenthe day of the month wheel and the month wheel for rotating the monthwheel a month space at the end of each revolution of the day of the montwheel, and driving means between. the month wheel and the year wheel forrotating the year wheel a year space at the end of each twelve v monthindication of the month wheel.

'7. In a calendar mechanism, a main supporting shaft, a day of themonth-wheel and a month wheel mounted on the supporting shaft, a mainoperating lever, a driving spring, mechanism operated by the spring forreciprocating the main lever, a ,trippable device for holding the mainlever mechanism from normally functioning, means for tripping suchdevice to impart a reciprocation to the main lever, means operated byeach reciprocation of the main lever for rotating the day of the mont.wheel an indicating day space, a two toothed segment rotating with theday of the month wheel, a gear rotating with the month wheel, a.spindle,'bearings in which the spindle is mounted, a pinion on one endof the spindle, with which said two toothed segment on the dayof themonth wheel is adapted to mesh'as the day of the month wheel completeseach revolution, and a pinion at the opposite end of the spindle meshingwith the gear of the month wheel.

8. In a calendar mechanism, a main supporting shaft, a day of the montwheel, a month wheel the periphery of which is divided into a pluralityof divisions, each division comprising twelve sub-divisions formingindicating spaces numbered from one to twelve and a year wheel mounted.on the supporting shaft, a main operating lever, a driving spring,mechanism operated by the spring for reciprocating the main lever, atrippable device for holding the main operat ing lever from normallyfunctioning, means for tripping such device to impart a reciprocation tothe main lever, means operated by each. reciprocation of the main leverfor rotating the day of the month wheel an indicating space, a twotoothed gear segment rotating with the day of the month wheel, a gearrotating with the month wheel, a spindle, bearings in which the spindleis mounted, a pinion on one end of the spindle and with which the gearsegment is adapted to meshas the day of the month? wheel completes eachrevolution, apinion at the opposite end of the spindle meshing with thegear of the month wheel, a gear rotating with the year wheel, twotoothed segments on the month wheel, one of such segments for eachdivision thereof, spindle bearings, a spindle mounted in such bearinga'apinion 'on one end of the spindle meshing with the gear of theyearwheel, and a pinion on the opposite end of the spindle with whichthe segment of the month wheel engages at the end of a twelve monthindication thereof.

9. In a calendar mechanism, a month wheel and a day of the month wheel,a shaft on which the month wheel and dayeof the mont wheel aremounted, amain lev r a support in which the lever is pivotally mountedintermediately of its length, means operated by one end of the mainleve'r ior'imparting a day step moveoperated by the other end of thelever for imment tothe day of the month wheel, means ment equal to aplurality of day spaces of such wheel, means actuated from the monthwheel for controlling the number of day spaces comprising each movement,a shaft, a spring drive for the shaft, a crank disc and pin mounted onthe shaft, a link and lever connection between the crank pin and mainlever, a trippable device normally holding the crank disc and shaftthereof from rotation, and tripping mechanism for tripping such device.I

10. In a calendar mechanism, a month wheel and a day of the month"wheel, a shaft on which the month wheel and day of the month wheel aremounted, a main lever, a support in which the lever is pivotally mountedintermediately of its length, means operated by one end of the shaft, acrank disc and pin mounted on the shaft,

a link and lever connection between the crank pin and main lever, atrippable device normally holding the crankdisc and shaft thereof fromrotation, and means for tripping such device,

.such means comprising a rock shaft, hearings in which the rock shaft ismounted, an escapement detent secured to the rock shaft, a pin extendingfrom the periphery of the crank disc and coacting with the detent, afinger secured to the rock shaft, a cam shaft, a driving source for thecam shaft, a cam secured to the'cam shaft, and

a spring for forcing the finger against the cam periphery.

WILLIAM WARDEN HUSTON.

